control and listen tetra unencrypted network

hi all, I would like to know, if someone tested the network in ex-jugo states (like is Slovenia)? In our country use no encrypted network (clear, no TEA encrypted)... So, i wonder if is possible with osmcom project to listen (real time) to tetra groups? If is possible to do this with DVB-T reciver, like this: http://www.youtube.com/watch?v=Z0hEquzLsWU product: https://www.cosycave.co.uk/product.php?id_product=220 This means that you can monitoring all tetra network, but not for voice,because i need a voice decoder? Thanks for help and answers.